edimabrunoth69 edimabrunoth69

22-10-2020
Mathematics

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Lucas is offered 15% or $21 off his total shopping bill. How much would have o be spent to make the 15% option the best one?

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kinzeejames65 kinzeejames65

22-10-2020

Answer:

Let the total bill be b. We have:

0.15b > 21 <-- Since 15% is 0.15

Using our inequality calculator, we get b>140.

So any bill greater than $140 will make the 15% off option the best one, since the discount will be higher than $21.

Step-by-step explanation:

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